2190554446 has 8 divisors (see below), whose sum is σ = 3286992744. Its totient is φ = 1094890200.

The previous prime is 2190554417. The next prime is 2190554447. The reversal of 2190554446 is 6444550912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2190554399 and 2190554408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190554447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186385 + ... + 197788.

It is an arithmetic number, because the mean of its divisors is an integer number (410874093).

Almost surely, 2^2190554446 is an apocalyptic number.

2190554446 is a deficient number, since it is larger than the sum of its proper divisors (1096438298).

2190554446 is a wasteful number, since it uses less digits than its factorization.

2190554446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387026.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 2190554446 is about 46803.3593452436. The cubic root of 2190554446 is about 1298.7274422857.

The spelling of 2190554446 in words is "two billion, one hundred ninety million, five hundred fifty-four thousand, four hundred forty-six".